A CONGRESSMAN has gone silent after one of his top aides died in a shocking backyard fire — leaving unanswered questions and blocked records surrounding the tragedy.

The bizarre case centers on the death of 35-year-old Regina Santos-Aviles, a married mom and longtime political staffer, who set herself ablaze in Uvalde, Texas, and died as a result.

Santos-Aviles worked as a regional district director for Representative Tony Gonzales, whose district spans San Antonio to El Paso.

Authorities said Santos-Aviles doused herself in gasoline before she went up in flames on September 13. No one else is believed to have been present.

Her devastated mother revealed chilling final words, telling the San Antonio Express News that her daughter screamed, "I don’t want to die," before collapsing.

Santos-Aviles was airlifted from her home to San Antonio, where she died the next day from her catastrophic injuries.

Her exact cause of death is still not confirmed. The Bexar County Medical Examiner’s Office said autopsy results are pending.

Despite the unusual circumstances, police have classified the incident as self-immolation and say no foul play is suspected.

But public records tied to her death, including the 911 call, police reports, and any video evidence, have been sealed by Uvalde police, the Daily Mail reported.

In a letter to multiple outlets, the department insisted it would make its case to the Texas Attorney General to keep the files secret.

That decision raised eyebrows. Police typically release information in active cases even when investigations are ongoing. Many of those files are considered public information and are generally made available.

Meanwhile, her boss, Rep. Gonzales, abruptly shut out reporters days later, canceling press access to a major event in San Antonio.

The Congressman had been set to attend the opening of a new Southwest Research Institute facility on September 22.

Although he still showed up at the ribbon-cutting, the media were told they were no longer welcome to attend.

Gonzales' office has only issued a short statement on Santos-Aviles' death, calling her a passionate public servant devoted to Uvalde.

"We are all heart-stricken by the recent news. Regina devoted her profession toward making a difference in her community," he said.

“She will always be remembered for her passion towards Uvalde and helping the community become a better place.”

The lack of transparency has fueled speculation, especially after questions surfaced over Gonzales' ties to Uvalde's police chief.

Chief Homer Delgado publicly endorsed the Republican lawmaker in his re-election bid — a move one local official blasted as inappropriate.

City councilman Ernest Santos said, “Here we have a chief of police endorsing this candidate, and we have this happen with an employee of Tony Gonzales. We must remain neutral.”

He added, “We need to make sure we do everything by the book.”

After the backlash, Gonzales' campaign quietly scrubbed flyers that touted Delgado's endorsement.